Frederick s



(No Model.) 2 sheets sheet 1.

1?. S. BRAGG.

GINDER ESCAPE AND DRAFT REGULATOR.

No. 365,235. Patented June 21, 1887.

WITNESSES: IN VENTOR ATTORNEY (No Model.) 2 sheets sheet 2.

P. S. BRAGG.

(FINDER ESCAPE AND DRAFT REGULATOR.

No. 365,235. Patented June 21, 1887.

. I 6 I :2 fi- 9L4 .1

V 2L 0 f Z I &E Z 1 Z 71 Z JWZZ WITNESSES; INVBNTOR ATTORNEY FREDERICK S. BRAGG, OF CORNING,

PATENT FFrc.

NE\V YORK, ASSIGNOR OF ONE-HALF TO AUSTIN LATHROP, OF SAME PLACE.

ClNDER-ESCAPE AND DRAFT-REGULATOR.

FPZZlCIPICATION forming part of Letters Patent No. 365,235, dated June 2]., 1887.

Application filed November 8 1896. Serial No. 218,257. (No model.)

To all 2071,0717, it may concern:

Be it known that I, Fnnninmcx S. BRAGG, of Corning, in the county of Steuben, in the State of New York, have invented new and useful Improvements in Cinder Escapes and Draft-Regulators for Locomotives, of which the following, takenin connection with the aceompanying drawings, is afull, clear, and exact description.

This invention consists in novel devices conneeted to the smoke-box of a locomotive for the purpose of killing the sparks which enter the same, and for controlling the air-draft, so as to render it more uniform, and thereby effect eeonomyin the consumption of fuel.

The invention is fully illustrated in the an nexed drawings, in which- Figure l is partly a side elevation and partly a vertical longitudinal section of that part of a locomotive to which myinvention is applied. Fig. 2 is an enlarged vertical transverse section of an apparatus embodying my invention. Fig. 3 is a transverse section on line 00 m, Fig. 2; and Fig. 4 is a front elevation of the devices by which the valves of the air-inlets and cinder-discharge spout of the smoke-box are controlled.

Similar letters of reference indicate corresponding parts.

A represents thesmokebox of a locomotive, formed with the front extension, A, and provided with the screen or wire-netting B, into which latter the exhaust-pipe 0 projects, said wire-netting serving to arrest the sparks and prevent the escape of the same through the smoke-stack D. The aforesaid appurtenances of the smoke-box have come into extensive use in various modified forms, and their construction and operation are generally well understood by locolnotive-engineers, and therefore need no detail description.

Hy invention is designed to extinguish the sparks arrested in the smoke-box, and to discharge the cooled sparks from the smoke-box, so as to prevent their accumulation therein, and at the same time control the air-draft through the flues and snioke-box, so as to mod erate the same and render it more uniform, and thus obtain better results from an econoiuized consumption of fuel; and to that end I provide the smoke-box A A with a permanent air-inlet arranged outside of the cinderdischarge spout andin such relation thereto as to bring the inflowing cold air current in contact with the sparks and extinguish the 5 same without interfering with the escape of the extinguished sparks through the aforesaid spout. This arrangement admits of many modifications in the construction and eombination of parts. The annexed drawings show the invention in the preferred form. It consists in providing the bottom or lower portion of the smoke-box A A with an opening, I, and rigidly securing to the smoke-box a tube, T, extending downward from the aforesaid opening. The upper and central parts of this tube are provided, respectively, with ports or air-in letsa a and b bin the sides, and inside of said tube and respectively opposite the ports a (t and I) Z) are arranged the two cinder-discharge spouts, E F, one above the other, and with spaces 0 cbetweeu the sides of said spouts and side of the tube, the upper ends of the upper and lower spouts being joined to the inside of the tube T, respectively, above the upper and lower ports (6 a b b, and the lower ends of said spouts extend below said ports, as shown in Fig. 2 of the drawings.

The spaces a c constitute air-receivers arranged outside of the cinder-discharge spouts E F, and the lower ports, I) b, constitute per manent air-inlets.

Over the upper ports, a a, is arranged a valve, V, by which to control the ingress ofair through said ports, said valve consisting of a sleeve fitted to slide in the direction ofthe cireumfer once on the exterior of the tube T and provided with corresponding ports a a.

To the lower extremity of the tube T is hinged a gate or valve, U, which is counterbalanced so as to cause it to normally stand in a closed position.

In order to permit the valves U and V to be controlled by the engineer in the cab of the engine, I pivot a post, (I, in an upright position to a suitable support, 0, attached to the under side of the smoke-box, which post has two lever-arms, Z Z, rigidly projecting from it. To the lever Z is connected a rod, j, which is extended to the cab of the engine so as to be conveniently manipulated by the engineer or fireman. To the other lever, Z, is connected one end of arod, m, the opposite end of which is connected with the valve V by a suitable spring-coupling, 9, consisting of a sleeve connected at one end with the aforesaid valve and provided at the opposite end with a perforated cap in which the rod m slides. The end of the rod which is inelosed in the sleeve is provided with a head, and between said head and capped end of the sleeve is interposed a spiral spring, which tends to force the rod m inward in the sleeve. Between the said spring-coupling and lever Z the rod m is provided with rigid collars n a. To another suitable support, h, is pivoted a bell-crank, 0, one arm of which engages the rod m between the collars n a, and the other arm of said bell-crank is connected with the valve U by a rod, 19.

The operation of my invention is as follows: The valveU being normally closed,. and a constant influx of air being admitted through the permanent openings or ports I) and spouts E F into the smoke-box, the sparks which enter the smoke box when the engine is running encounter the inflowing cold air, and are thereby extinguishedand cooled, and in this condition they escape through the spouts E F and become deposited on top of the closed valve U, and from thence they are discharged at proper intervals by opening the said valve, Theinflowi ng air also checks the draft through the stack D, and the opposition of said air to the current of the products of combustion en tering the smoke-box tends toforce the heat back against the flue-sheet in the smoke-box, and this, together with the check of the draft through the fines and the constant cleaning of the smoke-box from cinders,very materially 1. The combination, with the'sinokebox of an engine, of a cinder-discharge spout, and an air-receiver outside of the einder-spoutand communicating with the smoke-box, as set forth. V v I 2. The combination, with the smoke-box of an engine, of a cinder-discharge spou't connected with the bottom of said smoke-box, a gate for controlling the egress of cinders, and a permanent air-inlet to the spout above the gate thereof, substantially as set forth and shown.

-3. The combination, with the smoke-box of an engine, of a cinder-discharge spout connected to the bottom of said smoke-box, an air-receiver outside of the cinder-spout and communicating with the smoke-box, and a valve for controlling the ingress of air to said receiver, substantially as set forth.

4. The combination, with the smoke-box of an engine, of an air-receiver projecting from the bottom of said smoke-box and communieating therewith, and a cinder-spout arranged inside of said air-receiver, as set forth.

5. The combination, with the smoke-box of an engine, of a tube projecting from the bottom of said smoke-box and provided with ports in its side, and a'cinder-spout arranged inside of the. aforesaid tube, with a space between them and the lower end of said spout extending below the aforesaid ports, substantially as set forth and shown.

6. The combination, with the smoke-box of an engine, of a tube projecting from the bot- 7 tom of said smoke-box and provided with ports in its side, valves for regulating said ports, and a cinder-discharge spout arranged inside of the aforesaid tube and extending be low the ports thereof, substantially as speeifiedand shown.

7.. The combination, with the smoke-box of an engine, of a tube projecting from the bottom of said smoke-box and provided with ports in the sides of its uppenand central portions, valves for regulating the upper ports, and cinder discharge spouts arranged one above the other inside of the aforesaid tube, with spaces between thesaid spouts, and with the lower ends of said spouts extending, respectively, below the upper ports and below the lower ports of the surrounding tube, substantially as described and shown.

8. The combination, with the smoke-box of an engine, of an opening in the bottom of said smoke-box, a tube extending downward from said opening, cinder-discharge spouts arranged inside of said tube, ports in the side of the tube, and a valve connected to the lower end of the tube, substantially as described and shown.

9. In combination, with the valves Vand U, the lever Z Z, the rod m, connecting the leverice arm Z with the valve V and provided with a- FREDERICK -s. BRAGG. [n s] Witnesses:

H. P. DENIsON,

C. BENDIXoN.

IIO 

